A deep pencil beam survey of the distribution of galaxies in PHOENIX

Details A deep pencil beam survey of the distribution of galaxies in PHOENIX A deep pencil beam survey of the distribution of galaxies in PHOENIX

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj....100.1409k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 100, Nov. 1990, p. 1409-1415.

Astronomy and Astrophysics

Astronomy

3

Galaxies, Pencil Beams, Red Shift, Spatial Distribution, Astronomical Models, Astronomical Photometry, Mass Distribution, Voids

Scientific paper

As a first attempt to determine the frequency of occurrence of large voids like that in Bootes, a study has been made of galaxies in a circular region of diameter 25 deg, centered at alpha = 2h 15m, delta = -45 deg. This region was covered by 177 fields, each 15 arcmin square, located on a grid of spacing 1.75 deg. Galaxies were selected from these fields by eye, and redshifts were obtained for 150 of the brightest. Photoelectric photometry of a subset shows that the galaxies form an almost complete sample to a limiting magnitude, mB = 17.6, corresponding to a characteristic depth of 160/h Mpc. The space distribution of these galaxies is very inhomogeneous, and is similar to that found in a previous survey of the region around the Bootes Void. There are large density enhancements at velocities of 10,000 and 20,000 km/s.

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